The companies usually demanded long hours of exhausting work for low pay and no benefits.

But many Americans pursue education degrees while working as teachers, and therefore are unlikely to be chosen for assistantships, which demand long hours.

Employers often demand long hours, even from mothers of young children.

Mine owners demanded longer hours for less pay, and assigned miners to riskier work.

At a law firm known for demanding long hours, Mr. Sullivan stands out.

The business's very survival may depend on the involvement of the children, for example, demanding long hours and years of personal sacrifice.

His work on the case demands long hours away from his family.

The work demanded long hours and allowed me into the most intimate aspects of patients' lives.

The fact was that in the beginning, agriculture had demanded longer hours of disciplined labor than food-gathering and hunting.

The classic or traditional pot-au-feu generally demanded several hours of slow cooking and was frequently done in the home fireplace.